Determination of Vitamin C by an Iodometric Titration Purpose: The goal of this lab is to determine the concentration of vitamin C in juices and Real Lemon. A redox titration‚ involving an iodometric method‚ will be used to do the analysis. The samples will be classified by their Vitamin C content. Introduction: Although most mammals can synthesize vitamin C‚ or ascorbic acid (C6H8O6)‚ from sugars‚ man must ingest considerable quantities of this substance. The National Academy of Sciences recommends
Premium Vitamin C Titration Iodine
Investigating Vitamin C Background Vitamin C is found in green vegetables‚ fruits‚ and potatoes. It is essential for a healthy diet. The chemical name for vitamin C is ascorbic acid. Ascorbic acid is a good reducing agent and therefore it is easily oxidised. Methods for the detection of vitamin C involve titrating it against a solution of an oxidising agent. Where to start There are several oxidising agents that can be used and a commonly used one is 2‚6-dichlorophenol-indophenol or DCPIP
Premium Titration Vitamin C Chlorine
I/O Library Header Files: There are following header files important to C++ programs: The standard output stream (cout): The predefined object cout is an instance of ostream class. The cout object is said to be "connected to" the standard output device‚ which usually is the display screen. The cout is used in conjunction with the stream insertion operator‚ which is written as << which are two less than signs as shown in the following example. -------------------------------------------------
Premium Java
IB Biology Lab – Vitamin C content of food Aim: To compare the vitamin C content of different fruits using the decolourisation of DCPIP from blue to clear as the indicator. • You first need to estimate the volume of a known concentration of vitamin C solution required to decolourise 2 cm3 of DCPIP solution. • Then you need to determine the volume of fruit juice that decolourises 2 cm3 of DCPIP solution. This gives an estimate of the concentration of vitamin C in fruit juice. • This
Premium Volume Tomato Orange
GREGORIO C. BRILLANTES Gregorio C. Brillantes is a native of Camiling‚ Tarlac. He obtained his Litt. B. degree in the Ateneo de Manila University. He is a Palanca Award Hall of Famer and a multi-awarded fiction writer. He is one of the Philippines most popular writers in English. He often writes about individuals under thirty‚ adolescent or post adolescent ones who struggle with alienation from family‚ society and from themselves. His earlier collection of short stories earned him the title
Premium Ferdinand Marcos President of the United States
Many people have never heard of C-ASIST and are always amazed to hear what they do for the community. I now have an ‘elevator speech’ prepared for when people ask what it is. I always say “C-ASIST‚ is a non-profit organization that offers a free health clinic once a month to help the underinsured and the uninsured.” People don’t know how it works and how the founders are able to run a free clinic‚ but I explain to them that it is all volunteer based so they do not have to pay anyone that works at
Premium Health care Management Family
Cytochrome-C Comparison Brief Description: The molecular clock refers to mutations in DNA nucleotide sequence of genes occurring at a constant rate over time. The greater the difference in nucleotide sequence between two individuals of different species‚ the greater the amount of time has passed since they diverged from a common ancestor. The molecular clock helps to provide evidence to support conclusions previously based on comparative morphology and fossil records. Hypothesis: One hypothesis
Premium Arthropod Cellular respiration DNA
Upon his return to Oxford in 1919‚ he made many life long friends‚ namely A. K. Hamilton Jenkins‚ Owen Barfield‚ and A. C. Hardwood. Due to several causes including meeting mad and hopeless men and being influenced by the beliefs of the day‚ Lewis veered his life away from his previous search for romanticism and towards "the greatest good sense" (p.77). To his shock‚ some
Premium God God C. S. Lewis
1.3 C. elegans sensory system C. elegans is a simple multicellular organism‚ and‚ like other animals‚ it constantly perceives environmental cues and elicits appropriate physiological responses. Remarkably‚ this process is achieved with only a small number of neurons. An adult C. elegans hermaphrodite nervous system harbors 302 neurons‚ which have been grouped into 118 distinct classes according to their topology and synaptic connection pattern (Ward‚ 1975 #4;Sulston‚ 1977 #8;Sulston‚ 1983 #9;Ward
Premium Protein DNA Signal transduction
some simple approaches can also be very effective. The following is one of them. Assume that A‚ B‚ C‚ D‚ E are 5 variables storing 5 numbers respectively; and we would like to show the numbers on the screen in descending order. It can be done using the procedure as follows. 1. 2. 3. 4. 5. Initialize a variable number F that keeps a very large value (must be larger than those values of A‚ B‚ C‚ D‚ E) Search among the batch for the biggest number‚ which is smaller than the value of F Show
Premium Computer programming Programming language Computer program